A Straightforward Methodology to Modeling High Power Factor AC-DC Converters

作者：Marcos Alonso J; Gacio David; Sichirollo Francesco; Seidel Alysson R; Dalla Costa Marco A

来源：IEEE Transactions on Power Electronics, 2013, 28(10): 4723-4731.

DOI：10.1109/TPEL.2012.2232308

• Averaging modeling technique
• converter modeling
• converter simulation
• great-signal model
• power factor correction
• small-signal model

In this paper, a straightforward methodology to modeling high power factor (HPF) ac-dc converters is presented. The proposed methodology is based on the averaging technique directly applied to the converter under modeling. An averaged large-signal equivalent circuit is thus generated, which is useful to perform extremely fast simulations. From the large-signal model, both a steady-state and a small-signal analysis can be carried out to completely model the converter, achieving any desired steady-state characteristic and small-signal transfer function. The presented methodology is very intuitive and allows designers to achieve a natural understanding of the converter behavior. The methodology is illustrated with a HPF buck-boost converter operating in discontinuous conduction mode. Simulation and experimental results are provided to validate the proposed methodology.

• 出版日期2013-10